Where do you bond the gas pipe?
Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building.
What is bonding for gas pipe?
To make it really simple, when metal that can carry electricity (but shouldn’t) gets connected together to eliminate potential, we call it bonding. If the metal accidentally carries electricity or even a static charge, proper bonding will allow the electricity to be carried back to its source in a safe manner.
Why is bonding of gas piping required?
The purpose of bonding interior metal piping to the building grounding system is to provide a safe electrical path to ground should the metal piping become electrically energized. This safety requirement is intended to protect the system user from shock and the gas piping system from damage.
Do gas meters need to be grounded?
In general, the recommendation is that utilities should use an independent ground rod, not a gas meter. If electrical grounding is improperly attached to an Xcel Energy gas meter, the natural gas system is no longer provided with corrosion control.
How much does it cost to ground a gas meter?
$15 – $25 Per Foot It will generally cost the homeowner between $15-$25 a linear foot to install a gas line from the street to the gas meter at your home. The work includes trenching the ground, installing the line to the meter and gas main, then backfilling the trenched or excavated area.
What size wire do I need to bond a gas line?
The bonding conductor must not be smaller than a 6 AWG copper wire or the equivalent size if made of aluminum. The means for attaching the bonding conductor to the grounding electrode system must be in accordance with NFPA 70. The bonding conductor must be not longer than 75 feet (22,860 MM).
What do you need to know about gas piping bonding?
This appears to take the “maybe” out of the answer. This section’s requirements are explicit in that not only interior gas piping, but also that each portion of an aboveground gas piping system shall be bonded to the grounding electrode system. This includes exterior as well as interior metal gas piping.
Is the gas piping bonded to the grounding conductor?
QUESTION: You said in one of your CQD answers that the gas piping system should be bonded to the electrical supply system grounded conductor. I believe you should have said bonded to the grounding conductor. There is a difference. The 1999 NEC Handbook Section 250-104 (b) says that it should be bonded to the grounding electrode system.
When is metal piping bonded to other metal?
250.104 (B) Other Metal Piping. If installed in, or attached to, a building or structure, a metal piping system (s), including gas piping, that is likely to become energized shall be bonded to any of the following:
What kind of bonding is needed for propane lines?
If your concerned, the home needs to be inspected, and (if not present) proper bonding must be installed to CSST gas lines, to help protect the home in the event of a lightning strike. Underground natural gas lines are primarily polyethylene. Propane lines coming to the home are either copper or polyethylene.
Why is bond gas piping?
The reason for bonding the gas pipe is because some jobs use that flex gas pipe called CSST and when it is used that is when it needs to be bonded. You have to bond it by the manufactures instructions which is usually a #6 and larger.
What is bonding gas pipe?
Grounding and Bonding of Gas Piping. The grounding conductor is the one used to connect noncurrent-carrying metal parts of equipment, raceways, and other enclosures to the system grounded conductor, the grounding electrode, or both, at the service equipment or at the source of a separately derived system.
What is gas line bonding?
If you’re not familiar with the term, bonding gas lines is simply the process of attaching a grounding wire to the lines to keep them from holding a charge. You’ll often see this with the metal gas lines that connect to the gas meter, many of which will have a green ground wire looped up and connected to a fitting attached to the pipe.
What is CSST gas pipe?
Csst stands for corrugated stainless steel tubing. This type of gas line tubing is very popular among builders and contractors because of its ease of use, flexibility and its ability to save on labor installation costs especially over black iron pipe.
